Surface Reaction Kinetics of the Oxidation and Reforming of CH4 over Rh/Al2O3 Catalysts

被引：41
|
作者：
Karakaya, Canan [1 ,3 ]
Maier, Lubow [2 ]
Deutschmann, Olaf [1 ,2 ]
机构：
[1] Karlsruhe Inst Technol, Inst Chem Technol & Polymer Chem, D-76131 Karlsruhe, Germany
[2] Karlsruhe Inst Technol, Inst Catalysis Res & Technol, D-76131 Karlsruhe, Germany
[3] Colorado Sch Mines, Golden, CO 80401 USA
来源：
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS | 2016年 / 48卷 / 03期
关键词：
STAGNATION-POINT FLOW; METHANE PARTIAL OXIDATION; GAS-SHIFT REACTION; FUEL-CELL SYSTEMS; CARBON-DIOXIDE; NATURAL-GAS; CHEMICAL CONVERSION; REACTION PATHWAYS; SUPPORTED RH; FIXED-BED;
D O I：
10.1002/kin.20980
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An 48-step sur face reaction mechanism with thermodynamic consistent kinetic data is presented for the catalytic conversion of the gaseous chemical system H-2/O-2/H2O/CO/CO2/CH4 over Rh/Al2O3 catalysts. Total and partial oxidation as well as steam reforming and dry reforming of methane over Rh catalysts is studied experimentally and numerically at varying temperature and composition. The results are used to extend the kinetic schemes we developed for H-2 oxidation, CO oxidation kinetics, and the water-gas-shift reactions in former studies. Aside from the experiments in a stagnation-flow reactor presented here, we modeled a number of experiments from the literature to test the newly established kinetic scheme.
引用
收藏
页码：144 / 160
页数：17
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